The best early warnings of a big disaster may appear 180 miles above the ground, a controversial new theory says. By Erik Vance.

5G Is Just Around the Corner. It will make 4G phones seem positively quaint. By David Pogue.

Might humans be the only species on the planet to be truly conscious? Decoding the puzzle of human consciousness. By Susan Blackmore.

After a century, insulin is still expensive - Could do-It-Yourselfers change that? By Jenna E. Gallegos & Jean Peccoud.

The Last Hominin Standing. Why did homo sapiens alone survive to the modern era? By Kate Wong.

The Origins of Morality. How mankind learned to put our fate in one another's hands.

Inside Our Heads. Two Key Features Created the Human Mind.. By Thomas Suddendorf.

The limitations of personal genome service testing. Is current technology that tests for disease gene variants actually worth it?

Long thought to be divorced from the brain, the immune system turns out to be intimately involved in its functioning. By Jonathan Kipnis.

Research shows 60% of American teachers avoid teaching evolution. A growing movement tries to change that. By Adam Piore.